Animal spillover or lab leak? COVID origins still up for debate

A public notice sign advertises “911 COVID free testing and vaccines” in Santa Monica, CA. Photo by Amy Ta/KCRW

The U.S. Department of Energy announced an accidental lab leak was the most likely origin of COVID-19, but added a caveat of having “low confidence.” The U.S. intelligence community, however, is less certain and is still divided about its origins. KCRW looks at why the theory is gaining traction and the heated debate around it.